Question

If f(x) = x^2 − x + 6, what is the value of f(x + h) − f(x)/h?

x + 6
x − 1
2x − 1
2x + 6
x + 5

Answer 1

What did you try?

Answer 2

i dont know this kind of stuff so i havent tried

Answer 3

@ParthKohli

Answer 4

It must have been taught to you during the lessons. I suggest you to look over them and at least try something.

Answer 5

im getting ahead in school so its online

Answer 6

what does this expression f(x + h) − f(x)/h mean to you?

Answer 7

i really dont know?

Answer 8

$$\Huge \frac{f(x + h) − f(x)}{h}$$

Answer 9

i understand this but nothing else

Answer 10

$$\Huge f(x) = x^2 − x + 6$$ $$\Huge f(x+h) = (x+h)^2 −( x+h ) + 6$$

Answer 11

Does that^ make sense?

Answer 12

yeah

Answer 13

Ok, multiply it out and substitute in f(x + h) − f(x)/h and simply :-)

Answer 14

i got 2x+6 but i dont know if its right